加载css css-loader style-loader 增加css浏览器前缀 autoprefixer postcss-loader 加载sass sass-loader 加载外部文件 url-loader file—loader 模板文件 html-webpack-plugin 打包先删除再生成 clean-webpack-plugin 便捷开发 webpack-dev-server 对webpack配置文件分开发、生产配置 webpack-merge 工具集：如按需打包 lodash 打包分析 webpack-bundle-analyzer css 代码分割 mini-css-extract-plugin css 代码压缩 optimize-css-assets-webpack-plugin vue-loader vue-loader stylus-loader stylus-loader cross-env cross-env babel-loader babel-loader extract-text-webpack-plugin extract-text-webpack-plugin 压缩代码 uglifyjs-webpack-plugin ps:压缩后,bannerplugin代码会失效 uglifyjs-webpack-plugin PWA workbox-webpack-plugin 多进程打包 thread-loader thread-loader